WO2017108493A1

WO2017108493A1 - Ladder arrangement of an elevator installation

Info

Publication number: WO2017108493A1
Application number: PCT/EP2016/080731
Authority: WO
Inventors: Adrian Attinger
Original assignee: Inventio Ag
Priority date: 2015-12-21
Filing date: 2016-12-13
Publication date: 2017-06-29
Also published as: DE112016005860A5; CN108367890B; CN108367890A

Abstract

A ladder arrangement (1) of an elevator installation (100) is proposed, which has a ladder (3), an angle arrangement (5) at a lower end of the ladder (3), and a fixing arrangement (7) on a floor (116) of an elevator shaft (102) of the elevator installation (100). The angle arrangement (5) is firmly fixed to the lower end of the ladder (3) and has a first arm (9) running transversely with respect to a direction of longitudinal extent of the ladder (3). The fixing arrangement (7) is fixed relative to the floor (116) and has a pin (11), which projects transversely upward from the floor (116), and a stop (13), which runs transversely with respect to the pin (11) and spaced apart from the floor (116) of the elevator installation (100). The first arm (9) of the angle arrangement (5) has a groove (19) and is formed such that the first arm (9) can be pushed (15) into the fixing arrangement (7) from one side, and in the process, the pin (11) engages into the groove (19) and a part of the first arm (9) is received between the floor (116) of the elevator shaft (102) and the stop (13) of the fixing arrangement (7). By means of the specially designed angle arrangement (5) and the fixing arrangement (7), the ladder (3) can firstly, by means of its lower end, be fixed in position in a shaft pit (112) of an elevator shaft (102), and said ladder can secondly be secured against tipping over.

Description

Ladder arrangement of a suction system

The present invention relates to a ladder arrangement of an elevator installation.

Elevator installations generally serve to transport persons or objects within a building or structure, typically in a vertical direction. An elevator car and possibly a counterweight are thereby usually moved within a hoistway.

For example, in the context of maintenance or repair of the elevator installation, it may be necessary for a person to get into the elevator shaft. In this case, an elevator pit is generally provided in the elevator shaft below a travel normally used by the elevator car), in some cases also referred to as a shaft pit. In order to be able to reach down from the bottom elevator shaft door into the elevator pit, aids such as a ladder usually have to be provided. Conventionally, such a ladder was usually releasably mounted on an edge of the hoistway, that is, for example, attached to a wall of the hoistway, and if necessary then taken from there and then placed, for example, with a lower end on a floor of the elevator shaft, so that in the Elevator man entering the ladder from the lower elevator shaft door into the pit, that is, to a bottom of the

Elevator shaft, could climb.

New regulations such as the EN 81-20 / 50 define increased

Safety requirements for technical equipment designed to allow persons to enter the shaft pit of an elevator installation.

There may therefore be a need for a ladder assembly in an elevator system that can meet such increased safety requirements.

The conductor arrangement according to the main claim of the present patent application can meet such a demand. Advantageous embodiments are set forth in the dependent claims and in the following description. According to one aspect of the present invention, there is described a ladder assembly of a hoistway elevator system comprising a ladder, an angular assembly fixed to a lower end of the ladder, the angled assembly having a first arm extending at an angle to a longitudinal direction of the ladder and the first arm having a groove a fixing assembly fixed relative to a bottom of the hoistway, the fixing assembly comprising a pin projecting transversely from the base and a stopper spaced from the base, the first arm being formed so that the first arm engages the first arm Fixing device is inserted and engages in the inserted position of the pin in the groove and a part of the first arm between the bottom of the elevator shaft and the stop of the fixing arrangement is arranged.

Possible features and advantages of embodiments of the invention may be considered, inter alia, as being based on ideas and findings described below.

As noted in the introduction, ladders that are to be used in an elevator installation, for example to reach a shaft pit, are subject to the increased safety requirements defined in new regulations. Among other things, such regulations may require that a ladder to be used in the hoistway of the elevator installation be sufficiently stably positioned within the hoistway during use and that the ladder be prevented from tipping over during use by technical precautions. In this context, over tilting may be a reorientation of the conductor, which is initially inclined, for example at an angle of 70 ° to 80 ° to the floor of the elevator shaft, via a vertical orientation, that is to say a 90 ° orientation, towards a

opposite direction.

Various ways to meet such requirements are conceivable. For example, local depressions could be provided in the bottom of the hoistway in which a lower end of a ladder could be inserted and thereby anchored. However, it has been recognized that in such an embodiment, there may be a risk that the depressions may be added over time, for example with dirt, and then a secure anchoring of the ladder can no longer be guaranteed. Removing the dirt from such wells, without previously in the

Shaft pit to be entered, seems hardly possible.

An alternative possibility provides to fix an elongated metal profile at the bottom of the elevator shaft. The ladder can then be employed against this metal profile during use and secured against tipping over by the metal profile. However, it was recognized that the metal profile extends considerably into the pit. Since regulations require that in the pit always a certain security space remains in the elevator car or the counterweight in

Damage can not penetrate mechanically and thus a person could find a safe haven, the provision of a projecting into the pit metal profile lead to the security room would be reduced inadmissible, which could possibly be compensated only by a costly and costly enlargement of the pit ,

In order, inter alia, to avoid the mentioned disadvantages of alternative possibilities and still be able to meet the requirements of the regulations safety requirements, therefore, a ladder assembly of an elevator system is proposed in which a fixing is provided at the bottom of the elevator shaft, which is sufficiently fixed relative to this ground and by means of which a conductor equipped with an angle arrangement can be fixed in a sufficiently fixed position and secured against tipping over in the shaft pit.

For this purpose, the fixing arrangement has an upwardly projecting pin. The pin may for example be arranged vertically or perpendicular to the bottom of the elevator shaft, but could in principle also run obliquely to the ground. At or near an upper, cantilevered end of the pin, a stop extending transversely to the pin may be provided which extends at a certain distance from the bottom of the elevator installation. Preferably, the stop or its surface facing the ground should extend in a plane parallel to the bottom of the elevator system. Between the Stop the fixing and the bottom of the hoistway thus there is a gap.

The angle arrangement provided on the conductor includes, inter alia, at least one arm, hereinafter referred to as the first arm, which extends transversely to the armature

Longitudinal direction of the conductor extends, for example at an angle of between 60 ° and 80 °, preferably at an angle of between 70 ° and 75 °. If the ladder in the application, for example, is arranged obliquely at an angle of 70 ° to the bottom of the hoistway, the first arm thus extends approximately parallel to the bottom of the hoistway. At this first arm of the angle arrangement, a groove is provided, for example in the form of a slot open in one direction.

The first arm of the angle assembly and the groove provided therein are designed such that the first arm can be inserted from the one side into the fixing device when using the conductor, so that the pin of the fixing arrangement in the

Groove engages the first arm of the angular arrangement. The first arm of the angle arrangement is received at least in a partial area in the gap between the bottom of the elevator installation and the stop of the fixing arrangement. The relative to the bottom of the hoistway fixed pin of the fixing and its stop can thus the first arm of the attached to the head

Hold angle assembly by a positive fit in at least two of three spatial directions such that the fixed to the fixing conductor during their use can not accidentally slip sideways or can tip over.

According to one disclosed embodiment, the fixing arrangement can be designed such that a more than 2 cm, possibly even more than 1 cm, above the bottom of the hoistway upwardly projecting region of the fixing in plan view of the bottom of the hoistway a cross-sectional area of less than 20cm ² , preferably less than 10 cm ² , having. In other words, the stop of the fixing, which extends transversely to the generally vertically extending pin and thus in plan view of the bottom of the elevator shaft has a larger cross-sectional area than this, be sufficiently small dimensions, so that its cross-sectional area less for example, 20cm ² , which, for example, a diameter of less than about 5cm in a circular cross-section stop.

Due to the fact that the area of the fixing arrangement projecting substantially above the floor only has a very small cross-sectional area and thus only occupies a small volume within the shaft pit, a reduction of the safety space to be provided for a person in the shaft pit in an emergency can be reduced due to the small dimensions of the shaft superior fixing arrangement can be regarded as negligible.

According to one embodiment, the fixing arrangement is designed in such a way that it projects beyond the bottom of the elevator shaft by a maximum of 5 cm, preferably a maximum of 3 cm or a maximum of 2 cm. Such a small and only locally above the floor projecting fixing arrangement reduces one for a prescribed

Security room necessary volume at most negligible.

According to one embodiment, the fixing arrangement is fixed by engagement in a recess in the floor. In other words, a recess in the bottom can be introduced for mounting the fixing arrangement in the elevator shaft, in which then the fixing arrangement can be fixed engaging. For example, a hole in the

Bottom of the elevator shaft are drilled, in which then a suitably trained part of the fixing arrangement can be inserted and fixed therein. Such a way of fixing the fixing arrangement relative to the bottom of the hoistway can be made simple and / or cost-effective.

Alternatively or additionally, according to one embodiment, the

Fixing arrangement comprise a connecting part, wherein a first region of the

Connecting part is attached to a side wall of the elevator shaft and the pin on a laterally spaced from the first region second region of the

Connecting part is attached.

In other words, in this embodiment, the fixing is not or at least not exclusively fixed engaging in the bottom of the elevator shaft. This can take into account the fact that in some cases it is detrimental or even It may be prohibited to drill recesses in this floor, for example to drill holes in the bottom of the hoistway, to avoid damaging the integrity and / or tightness of the floor, which could, for example, risk leakage of water through the floor Through the floor could get into the elevator shaft.

Thus, instead of fixing the fixing arrangement in a deep depression in the floor, it can thus be alternatively provided to fix the fixing arrangement with a connecting part provided therein on a side wall of the elevator shaft. The pin of the fixing arrangement is provided at a distance to an attachment point of the connecting part on the side wall. The pin is thereby on the one hand sufficiently spaced from the side wall, so that the conductor can be fixed in its use in a preferably oblique orientation, that is, for example, with 70 to 75 ° angle, with its lower end to the pin and the stop provided thereto. On the other hand, the pin is sufficiently fixed mechanically stable relative to the ground, so that the on the angular arrangement in the

Fixieranordnung engaging conductors held sufficiently stable in position and can be secured against tipping over.

According to an embodiment, the pin of the fixing arrangement has an external thread. With such an external thread, the pin can for example be screwed into a depression provided in the bottom of the elevator shaft, that is to say, for example, a previously drilled hole. Alternatively, the pin in a correspondingly provided with a counter-threaded opening in the second region of an optionally

provided connecting part of the fixing are screwed. This allows easy mounting of the fixing and its pin.

In a specific embodiment, the pin and the stop of the fixing arrangement are formed by a screw, the stop being formed by the screw head. Such an embodiment is particularly easy to implement, since simple conventional screws can be used to form the fixing arrangement, in which the screw head extends transversely to a screw pin or bolts and protrudes laterally beyond the latter, so that the screw head forms the stop desired for the fixing arrangement can. For example, according to an embodiment, the pin, or in the concrete example a threaded bolt of a screw, can be mounted to engage in a dowel, wherein the dowel is inserted into a depression in the bottom of the elevator shaft. In other words, in this very simple embodiment, the fixing arrangement can be realized, for example, by boring or otherwise introducing one or more holes in the bottom of the elevator shaft, then inserting dowels into these holes and then inserting the pin of the fixing arrangement or concrete case, the screw is inserted into the dowel, that is screwed, for example, is.

The pin or the screw is merely inserted so far or

screwed in that provided on the cantilever end stop, that is in the concrete example of the screw head, not in contact with the bottom of the

Elevator shaft comes but remains spaced from this with a gap forming distance.

Alternatively or additionally, according to one embodiment, the pen can be inserted in a

Groove in the bottom of the elevator shaft engaging be glued into the recess.

Such sticking of a pin in a depression can be mechanically very stable. This can be prevented, for example, that a mounted in the bottom of the hoistway pin with excessive mechanical stress, that is, for example, in an excessive acting from above pressure on the pen, as he can occur, for example, when a person accidentally enters the pen, deeper into the depression slips in. Such inadvertent displacement of the pin deeper into the recess in the floor could otherwise result in the gap provided between the stop and the floor becoming unduly small. The sticking of the pin into the recess can be achieved, for example, by means of a hardening compound, such as e.g. an epoxy resin.

According to one embodiment, the distance between the stop is

Fixieranordnung and the bottom of the hoistway greater than a thickness of the first arm of the angle assembly in an adjacent to the groove area, ie where, where Part of the first arm is received in the gap between the bottom of the hoistway and the stop of the fixing arrangement.

In other words, taking into account the characteristics of the angular arrangement, the fixing arrangement should preferably be designed and mounted in such a way that the stop provided on it is at a position spaced from the bottom of the housing

Elevator shaft is located so that the gap between the stop and the bottom is greater than the inserted in this gap part of the first arm of the

Angular arrangement, when the conductor is to be fixed with its angular arrangement on the fixing. The first arm of the angle assembly can thus be inserted with a certain vertical play in the gap between the stop and the ground. This can simplify insertion of the angle arrangement into the fixing arrangement and thus coupling of the conductors to the fixing arrangement anchored relative to the floor. The distance between the stop and the floor can be, for example, at least 10%, preferably at least 30% or 50%, greater than the thickness of the first arm of the angle arrangement in the portion received between the floor and the stop adjacent to the groove. Specifically, the distance may be, for example, at least 0.5mm, preferably at least 1.5mm, greater than the thickness of the first arm in said area, which may typically be between 1mm and 5mm.

According to an embodiment, the groove provided in the first arm is formed so as to widen toward an open end. In other words, the groove can be made conical at least in an area open towards the edge. This can facilitate lateral insertion of the angular arrangement with the groove formed in its first arm into the fixing arrangement and thereby engagement of the pin of the fixing arrangement in the groove of the angular arrangement.

According to one embodiment, the angular arrangement may be formed with a metal profile. Such a metal profile can be easily manufactured and can provide a necessary mechanical stability of the angular arrangement. For example, the angular arrangement by bending and possibly punching or similar simple processing steps of a metal sheet, such as a steel sheet, in particular a galvanized steel sheet, are formed. The metal sheet and thus the angle arrangement can have a material thickness of, for example, between 0.5 mm and 10 mm, preferably between 2 mm and 4 mm.

In particular, an angular arrangement formed from a stable metal profile can ensure sufficient force transmission between the conductor fixedly attached to it and the fixing arrangement firmly fixed relative to the bottom of the elevator shaft, with which the angular arrangement is to be coupled in the application. The fact that the angle arrangement can be supported on the one hand from below, for example by the bottom of the elevator shaft, and on the other hand by the stop of the

Fixieranordnung is secured against shifting upwards, can with the

Fixing arrangement coupled angular arrangement thus not only be secured against lateral displacement, but also complementary to a vertical displacement or tilting. The conductor rigidly connected to the angle arrangement can thereby be secured not only against lateral slippage but also against tipping over.

Alternatively, the angle arrangement can also be formed from other materials and / or with other geometric configurations, as long as a sufficient mechanical stability can be ensured.

According to a specific embodiment, the angle arrangement may comprise a second arm, which preferably extends transversely to the first arm and substantially parallel to the longitudinal extension direction of the conductors. The second arm is attached to the ladder.

In other words, the angle arrangement can not only have a first arm running at an angle transverse to the direction of longitudinal extension of the conductors, but additionally a substantially, that is, for example, within one

Tolerance range of less than 30 °, preferably less than 10 °, parallel to the longitudinal direction of the conductor extending second arm. The first and second arms may be formed as different regions of a common, integral component, such as an angle profile.

The second arm can be fixed stably and in particular against rotation on the ladder. For example, the second arm may be fastened to the conductor at two positions which are spaced apart from one another in the longitudinal direction of the conductors. By such a way the fastening can be transmitted to the angle arrangement acting torques well on the ladder. Because of such torque transfer between the conductor and the angle assembly, the conductors can be effectively prevented from tipping over once the angular assembly is coupled to the fuser assembly. Fixing the angle arrangement to the conductor can in this case, as in the cases of the above-described other embodiments, for example, by

Fixing screws, rivets, welds or other non-positive, positive and / or cohesive manner are made.

It should be understood that some of the possible features and advantages of the invention are described herein with respect to various embodiments. One skilled in the art will recognize that the features may be suitably combined, adapted or replaced to provide further embodiments of the invention.

Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings, wherein neither the drawings nor the

Description are to be construed as limiting the invention.

Fig. 1 shows an elevator system with a conductor arrangement according to an embodiment of the present invention.

FIG. 2 shows an enlarged side view of a lower end of the conductor arrangement from FIG. 1. FIG.

3 shows an enlarged front view of the lower end of the conductor arrangement from FIG. 1.

Fig. 4 shows an enlarged top view of the lower end of the

Ladder arrangement of FIG. 1.

Fig. 5 shows an enlarged side view of a lower end of a conductor arrangement according to another embodiment of the present invention. The figures are only schematic and not to scale. The same reference numerals designate the same or gl cally acting features in the various figures.

1 shows an elevator installation 100 with a conductor arrangement 1 arranged therein according to an embodiment of the present invention. The elevator installation 100 comprises an elevator shaft 102 in which an elevator cage 104 can be moved in the vertical direction. On each of the floors 110 is an elevator shaft door 106, which may be opened together with an elevator car door to provide access to the elevator car 104. In normal operation, a hoistway door 106 can only be opened when the elevator car 104 is in the corresponding floor 110.

However, for example, in the case of a necessary maintenance or repair of the elevator installation 100, elevator shaft doors 106 can also be opened to gain access to the elevator shaft 102. For example, in a lowermost floor 110 ', there may be opened a hoistway door 106, although the elevator car 104 is located farther up, for example in a floor 110 "above, to access a lower area through an opening 108 resulting therefrom the hoistway 102 and in particular to a hoistway pit 112. The hoistway 112 is located below the level of the lowest floor 110 'to be operated by the elevator car 104.

In order to allow a person entrusted with the repair or maintenance to be able to descend into the hoistway pit 112 from the lowest floor 110 ', a ladder 3 is usually kept in the hoistway 102. This conductor 3 may for example be releasably held on a shaft wall 114. In the unused state, the conductor 3 can thereby store parallel to the shaft wall 114.

In order to use the ladder 3 for descending into the hoistway pit 112, it can be taken out of its storage by a person and placed on a floor 116 of the hoistway 102. Here, however, following regulations, it must be ensured that the conductor 3 on the one hand finds a secure hold on the base 116 and on the other hand it must be reliably prevented that the conductors 3 from an obliquely employed position in which they, as shown in Fig. 1 , in about an angle of 70 ° to the floor 116 is tilted in a direction away from the side wall 114, as indicated by the arrow 118 in Fig. 1.

To ensure this, a ladder assembly 1 is proposed for the elevator system 100, in which the conductors 3 not only on the floor 116 of the

Elevator shaft 112 gets up. Instead, an angle arrangement 5 and a fixing arrangement 7 are provided for the conductor arrangement 1 in addition to the conductor 3. The angle assembly 5 is fixedly secured to a lower end of the conductor 3 and has a transversely, i. for example, at an angle of between 70 ° and 75 °, to a longitudinal direction of the conductor 3 extending first arm 9. The

Fixieranordnung 7 has a transversely projecting from the bottom 116 upwardly pin 11 and a transverse to this pin 11 and spaced from the bottom 116 extending stop 13. The first arm 9 of the angle assembly 5 has a groove 19 (shown in Fig. 4) and is configured so that the first arm 9 in the event that the ladder 3 is to be used to descend into the hoistway pit 112, can be inserted from one side into the fixing arrangement 7, as illustrated by the arrow 15 in Fig. 1. A flat part of the first arm 9 slides between the bottom 116 of the elevator installation and the stop 13 of the fixing arrangement 7, wherein the pin 11 of the fixing arrangement 7 engages in the groove 19 on the first arm 9 of the angle arrangement 5 and thus the first arm 9 during lateral insertion leads.

2 to 4 are enlarged views from different perspectives on the dashed lines in Fig. 1 rimmed area A in the lower region of the conductor arrangement 1 shown. The ladder 3 can essentially have a conventional structure with two spars 4 extending parallel to one another in the longitudinal direction of the ladder 3 and between these spars and transoms or treads (not shown) extending transversely thereto. In a lower region of the ladder 3, an angle arrangement 5 can be permanently attached to one of the spars 4 or preferably to both spars. The angle arrangement 5 can be screwed to the respective spar 4, for example in the region of a second arm 10 via two fastening screws 23 spaced apart from one another in the direction of longitudinal extension of the conductors 3, in order to fix the angle arrangement 5 against rotation on the conductor 3. The second arm 9 of the angle assembly 5 is formed in the illustrated example as an L-shaped profile, preferably as a metal profile. A first planar leg 17 of this profile extends substantially in a plane parallel to the bottom 116 of the elevator shaft and thus transversely to the longitudinal direction of the ladder 3, whereas a second flat leg 18 of the L-profile protruding therefrom at right angles extends essentially in one plane which also includes the longitudinal extension direction of the conductors 3 and partially merges into or forms the second arm 10 of the angle arrangement 5.

The fixing assembly 7 is easily formed in the example shown by means of a conventional screw 12. A shaft of the screw 12 forms the pin 11, whereas a head of the screw 12 forms the stop 13. The screw 12 was for mounting the fixing assembly 7 in a recess in the bottom 116 of the elevator shaft, that is, for example, in a previously drilled hole, introduced and anchored in this example by means of a dowel (not shown) or alternatively by means of a bond. The screw 12 is merely inserted or screwed into the recess so far that the screw head forming the stop 13 does not come into contact with the surface of the base 116, but is spaced therefrom, for example by a distance "d" (see FIG This distance "d" should be greater than the thickness "c" of the first arm 9 in the region of the first flat leg 17 adjacent to the groove 19. If, for example, the first arm 9 of FIG

Angular assembly 5 is formed with a metal profile with a plate thickness of 3mm, the distance "d" between the stop 13 and the bottom 116, ie gap formed therebetween, for example, at least 3.5mm, preferably at least 5mm.

In order to fix the ladder 3 with respect to the floor 116 and to be able to prevent it from tipping over, it is first set up on the floor 116 with the angular arrangement 5 provided thereon and then moved in the lateral direction 15 towards the fixing arrangement 7. On the one hand pushes the first flat leg 17 of the first arm 9 in the gap between the stop 13 and the bottom 116. On the other hand, the pin 11 of the fixing 7 engages in the groove 19, wherein an insertion of the pin 11 in the groove 19 through a conical local widening 21 at the open end of the groove 19 is simplified. In this way, the angle assembly 5 together with the attached to her head 3 on the one hand prevented laterally, that is parallel to the floor 116, to move unintentionally. On the other hand, a partial lifting of the angle assembly 5 from the bottom 116 or a tilting of the angle assembly 5 from the bottom 116 is prevented beyond an acceptable level, so that the conductor 3 can not tip over.

Various alternative embodiments of both the angular arrangement 5 and the fixing arrangement 7 are conceivable.

For example, the fixing assembly 7 may be formed with a separate pin 11 and a separate stop 13 instead of a one-piece screw 12 having a multi-piece construction. For example, the pin 11 may be a threaded pin onto which a nut or, preferably, two nuts secured against each other by locking are screwed and secured at a suitable distance from the base 116. The pin 11 may be glued into a previously formed bore or other recess in the bottom 116, on the one hand to be able to prevent the pin 11 is displaced from the top in the floor 116 in case of accidental load, and on the other hand, if necessary also to prevent water or the like from penetrating from below through the hole in the elevator shaft.

Alternatively, the fixing arrangement 7 can not be fixed by screwing the pin 11 directly into the floor 116 of the elevator shaft relative to this floor 116. Instead, as illustrated in FIG. 5, it may be provided to attach the pin 11 to one of the side walls 114 of the hoistway 102 by means of an elongated connection part 25, thus fixing it in this way relative to the floor 116 of the hoistway

Elevator shaft 102 to fix without having to damage an integrity of the bottom 116, for example, by a local tapping. The fixing assembly 7 can be attached with its pin 11 to the connecting part 25 and does not need to engage directly in the bottom 116. The connecting part 25 may be a metal sheet or a

Sheet metal profile or other ensuring sufficient stability

Be construction. The connection part 25 may be one or more

Fixing screws 27 may be attached to the side wall 114. As an alternative to fastening the connecting part 25 by means of at least one fixing screw 27, the connecting part 25 be glued example of the floor 1 16. Accordingly, the component of the connecting part 25 shown in FIG. 5, which bears against the side wall 114, can be dispensed with.

Finally, it should be noted that terms such as "comprising," "comprising," etc., do not exclude other elements or steps, and terms such as "a" or "an" do not exclude a variety. It should also be appreciated that features or steps described with reference to any of the above embodiments may also be used in combination with other features or steps of other embodiments described above. Reference signs in the claims are not to be considered as limiting.

Claims

claims

1. ladder arrangement (1) of a lift shaft (102) comprising elevator installation (100), comprising:

a ladder (3);

a bracket (5) fixed to a lower end of the ladder (3); wherein the angular arrangement (5) has a first arm (9) extending at an angle to a longitudinal direction of the conductors (3) and the first arm (9) has a groove (19)

a fixing assembly (7) fixed relative to a floor (116) of the hoistway (102); the fixing assembly (7) having a pin (11) projecting transversely from the base (116) and a stop (13) fixed to the pin (11) and spaced from the base (116);

wherein the first arm (9) is formed such that the first arm (9) in the

Fixing arrangement (7) can be inserted (15) and engages in the inserted position of the pin (11) in the groove (19) and a part of the first arm (9) between the bottom (116) of the elevator shaft (102) and the stop (13 ) of the fixing arrangement (7) is arranged.

2. Ladder arrangement according to claim 1, wherein a more than 2 cm above the bottom (116) of the elevator shaft (102) upwardly projecting region of the fixing arrangement (7) in

Top view of the bottom (116) of the elevator shaft (102) has a cross-sectional area of less than 20cm ² .

3. conductor arrangement according to one of the preceding claims, wherein the

Fixing arrangement (7) a maximum of 5cm above the bottom (116) of the elevator shaft (102) protrudes.

4. conductor arrangement according to one of the preceding claims, wherein the

Fixing assembly (7) having a connecting part (25), wherein a first portion of the connecting part (25) on a side wall (114) of the elevator shaft (102) is fixed and the pin (11) on a laterally spaced from the first region of the second region Connecting part (25) is attached.

5. Conductor arrangement according to one of the preceding claims, wherein the pin (11) of the fixing arrangement (7) has an external thread.

6. conductor arrangement according to claim 5, wherein the stop (13) of the fixing arrangement (7) is formed by a screw head.

A ladder assembly as claimed in any one of the preceding claims, wherein the pin (11) engages a dowel formed in a recess in the bottom (116) of the hoistway (102).

A ladder assembly as claimed in any one of the preceding claims, wherein the pin (11) is adhesively bonded to the recess in a recess in the bottom (116) of the hoistway (102).

9. A conductor arrangement according to one of the preceding claims, wherein a distance (d) between the stop (13) of the fixing arrangement (7) and the bottom (116) of the hoistway (102) is greater than a thickness (c) of the first arm (9 ) of the

Angular arrangement (5) in a region adjacent to the groove (19).

10. Conductor arrangement according to one of the preceding claims, wherein the groove (19) widening towards an open end (21) is executed.

11. Ladder arrangement according to one of the preceding claims, wherein the

Angular assembly (5) is formed with a metal profile.

A ladder assembly according to any one of the preceding claims, wherein the first arm (9) of the angle assembly (5) extends at an angle of between 60 ° and 80 ° to the longitudinal direction of the ladder (3).

13. Conductor arrangement according to one of the preceding claims, wherein the

Angular assembly (5) has a second arm (10), wherein the second arm (10) of the angle assembly (5) is fixed to the conductor (3).